soniyarobinson
soniyarobinson
16-03-2020
Mathematics
contestada
10) x²=16
A ±4
B ±8
C 4
D 8
Respuesta :
hanifchoirunnisa
hanifchoirunnisa
16-03-2020
x² = 16
x² - 16 = 0
x² - 4² = 0
(x - 4)(x + 4) = 0
x = 4 or x = -4
x = ±4 (A)
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